It's located on top of the air intake, above the engine, looks like a sensor with a cylinder at the end, its attached to the acceleration body with 2 10 mm screws.
See "Related Links" for a pictorial guide to removing & cleaning the IAC valve on a 2000 Windstar
The "Related Question" below is an extensive discussion on the 1999-2003 temperature control valve / heater control valve. It is likely the information will be similar to the 1997 / 1998 Windstar
abs 2003 windstar abs senor location
electric window binds on 2003 ford windstar
location of egr valve on 2002 kia spectra
Backside of the engine in the center freeze plug :0)
by the motor+
left valve cover toward the rear
A Dodge Durango does not have a water control valve in the heater plumbing. The cabin temperature is controlled with airflow control doors.
Facing the engine from the front of the vehicle, the battery is located in the right, front corner.
Where is idle air control valve located on 2003 Pontiac Grand Prix GT, 3.8 liter 6 cylinder?
Middle of the valve covers.
The battery group is 65N for a 2003 Ford Windstar